This looks to be the same pic in your sig. If it is, sorry but im not really feeling the photoshop. You lost all definition in the detail of the car. It just looks like a dark blob now. Also, i'd probably fix the white balance a bit.

You've got a lot of different colored lights in that shot so it's hard to get a good white balance. I'd dodge the car or create another level and lighten just the car to show it more. I'd also crop it a little tighter.